How To Fix 5E451 - Enter Message syntax version as it is a compulsory field in AFI

5E451 - Overview

• Message type: E = Error

• Message class: 5E - Error messages for Spanish infotypes module pools

• Message number: 451

• Message text: Enter Message syntax version as it is a compulsory field in AFI

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message 5E451 - Enter Message syntax version as it is a compulsory field in AFI ?

  The SAP error message 5E451 indicates that the "Message syntax version" is a compulsory field in the Application Function Interface (AFI) and must be entered. This error typically arises when you are trying to process a message in the AFI framework without specifying the required syntax version.
  
  Cause:
  The error occurs because the system requires a specific version of the message syntax to be defined for processing. This is essential for ensuring that the message is interpreted correctly by the receiving system or application. If this field is left blank or not properly filled, the system will throw this error.
  
  Solution:
  To resolve the error, you need to ensure that the "Message syntax version" field is filled in correctly. Here are the steps you can take:
  
  
  Access the AFI Transaction: Go to the relevant transaction in SAP where you are trying to process the message.
  
  
  Locate the Message Syntax Version Field: Find the field labeled "Message